<template>
  <div class="tabs">
      <el-tag 
       v-for="(tag,index) in tags"
       :key="tag.name" 
       :closable="tag.name !== 'home'" 
       :effect="$route.name === tag.name ? 'dark' : 'plain'"
       @click="changeMenu(tag)"
       @close="handleClose(tag,index)"
        size="small">
          {{tag.label}}
      </el-tag>
  </div>
  
</template>

<script>
import { mapState,mapMutations } from 'vuex'
export default {
    name:'CommonTag',
    data(){
        return{

        }
    },
    computed:{
        ...mapState({
            tags:state=>state.tab.tabsList
        })
    },
    methods:{
        ...mapMutations({
            close:'closeTag'
        }),
        changeMenu(item){
            this.$router.push({ name: item.name })

        },
        handleClose(tag,index){
            const length =this.tags.length -1
            this.close(tag)
            if(tag.name !==this.$route.name){
                return;
            }
            if(index ===length){
                this.$router.push({
                    name:this.tags[index-1].name
                })
            }else{
                this.$router.push({
                    name:this.tags[index].name               })
            }
            
        }
    }

}
</script>

<style lang="less" scoped>
.tabs{
    padding: 20px;
    .el-tag{
        margin-right: 15px;
        cursor: pointer;
    }
}


</style>